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Structural comparison of the O4-specific polysaccharides from E. coli O4:K6 and E. coli O4:K52

✍ Scribed by Barbara Jann; Alexander S. Shashkov; Helga Kochanowski; Klaus Jann

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 572 KB
Volume: 248
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(93)84131-o

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✦ Synopsis

Two distinct forms of the 04 antigen (LPS) from E. coli were analysed by 'H and '3C NMR spectroscopy. Both consisted of o-glucose, L-rhamnose, 2-acetamido-2,6-dideoxy_L-galactose (L-FucNAcl, and 2-acetamido-2-deoxy-o-glucose.

Their structures were found to be

In the 04-specific polysaccharide from E. coli 04:K3, G4:K6, and 04:K12, X is a-D-Glcp. In the 04 specific polysaccharide from E. coli 04: K52, the rhamnose residue is not substituted (X = Hl.

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